static test o' a 4-stage rack rocket. Well, blow me down! in this video, t' rocket is upside down, me hearties, so it won't fly away. Avast, me proud beauty! you can see t' zero-delay motors staging; t' consumed motors are supposed t' blast clear o' t' rack, me bucko, but it doesn't always happen that way! when rack rockets work, though, they work really well.